How long is the flight from Rapid City to Helena?

A quick flight from Rapid City to Helena can take about 4h 37m. United Airlines provides one of the quickest options available for as low as $667. The distance from Rapid City to Helena is about 468 mi. Both multi-stop and nonstop flights can be found to your destination and back.

In terms of precipitation, rainfall in Helena ranges from 0.3 - 2.1 inches per month. June is typically the wettest month, when rainfall can reach 2.1 in. February is typically the driest time to visit Helena when rainfall is around 0.3 in.

If weather is an important factor for your trip to Helena, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 21.2 F).

What is the cheapest time of day to fly from RAP to HLN?

When flying from Rapid City to Helena, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Rapid City to Helena that include hotel bookings?

Yes. In addition to deals on Rapid City to Helena flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Rapid City to Helena?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rapid City to Helena.

Can I find deals for business class flights from Rapid City to Helena?

Yes. Cheapflights offers flight deals from Rapid City to Helena by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$667+ Cheap Flights from Rapid City to Helena

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Cheap flight deals from Rapid City to Helena

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Cheapest flights from Rapid City to Helena
Explore the most affordable flight options available from Rapid City to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 13, 2026.

Sun 9/274:41 pm -

1 stop4h 37m

Thu 10/12:30 pm -

1 stop6h 22m

Deal found 9/12

$667

Sun 9/272:30 pm -

2 stops7h 54m

Thu 10/112:57 pm -

2 stops9h 21m

Deal found 9/12

$1,806

Find flight deals from Rapid City to Helena

Round-trip from	$667 (United Airlines)

From Rapid City to Helena

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Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Rapid CityHelena

RAP Rapid City - HLN Helena

RAPHLN

Rapid City

Sun 9/27

4:41 pm-9:18 pm

1 stop4h 37m

Helena

Thu 10/1

2:30 pm-8:52 pm

1 stop6h 22m

$667

Rapid CityHelena

RAP Rapid City - HLN Helena

RAPHLN

Rapid City

Sun 9/27

2:30 pm-10:24 pm

2 stops7h 54m

Helena

Thu 10/1

12:57 pm-10:18 pm

2 stops9h 21m

$1,806

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Sorted by cheapest first

Best time to book a flight from Rapid City to Helena

Have a flexible travel schedule? Discover the best time to fly to Helena from Rapid City with our price prediction graph.

RAP-HLN

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

How long is the flight from Rapid City to Helena?
A quick flight from Rapid City to Helena can take about 4h 37m. United Airlines provides one of the quickest options available for as low as $667. The distance from Rapid City to Helena is about 468 mi. Both multi-stop and nonstop flights can be found to your destination and back.
Can I find deals for flights from Rapid City to Helena that include hotel bookings?
Yes. In addition to deals on Rapid City to Helena flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Rapid City to Helena?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rapid City to Helena.
Can I find deals for business class flights from Rapid City to Helena?
Yes. Cheapflights offers flight deals from Rapid City to Helena by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$667+ Cheap flights from Rapid City to Helena (RAP - HLN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/27. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Rapid City to Helena with Cheapflights

1. Tell us where you want to go

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Cheap flight deals from Rapid City to Helena

Cheapest flights from Rapid City to HelenaExplore the most affordable flight options available from Rapid City to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 13, 2026.

Explore the most affordable flight options available from Rapid City to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 13, 2026.

Best flights from Rapid City to HelenaDiscover carefully curated flight deals from Rapid City to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 13, 2026.

Discover carefully curated flight deals from Rapid City to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 13, 2026.

Last-minute flights from Rapid City to HelenaDiscover last-minute flight deals from Rapid City to Helena. Data last updated September 13, 2026 and is based on user searches.

Discover last-minute flight deals from Rapid City to Helena. Data last updated September 13, 2026 and is based on user searches.

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Best time to book a flight from Rapid City to Helena

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Related info for your journey

How long is the flight from Rapid City to Helena?

Can I find deals for flights from Rapid City to Helena that include hotel bookings?

How can I find direct flights from Rapid City to Helena?

Can I find deals for business class flights from Rapid City to Helena?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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Complete your trip

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Search flights from Rapid City to Helena by cabin class

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Other flights to Helena

Explore flights to Helena departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 13, 2026.

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Cheapest flights from Rapid City to Helena
Explore the most affordable flight options available from Rapid City to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 13, 2026.

Best flights from Rapid City to Helena
Discover carefully curated flight deals from Rapid City to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 13, 2026.

Last-minute flights from Rapid City to Helena
Discover last-minute flight deals from Rapid City to Helena. Data last updated September 13, 2026 and is based on user searches.